| 1 | #ifndef _QLA_DSD_H_ |
|---|---|
| 2 | #define _QLA_DSD_H_ |
| 3 | |
| 4 | #include <asm/unaligned.h> |
| 5 | |
| 6 | /* 32-bit data segment descriptor (8 bytes) */ |
| 7 | struct dsd32 { |
| 8 | __le32 address; |
| 9 | __le32 length; |
| 10 | }; |
| 11 | |
| 12 | static inline void append_dsd32(struct dsd32 **dsd, struct scatterlist *sg) |
| 13 | { |
| 14 | put_unaligned_le32(sg_dma_address(sg), p: &(*dsd)->address); |
| 15 | put_unaligned_le32(sg_dma_len(sg), p: &(*dsd)->length); |
| 16 | (*dsd)++; |
| 17 | } |
| 18 | |
| 19 | /* 64-bit data segment descriptor (12 bytes) */ |
| 20 | struct dsd64 { |
| 21 | __le64 address; |
| 22 | __le32 length; |
| 23 | } __packed; |
| 24 | |
| 25 | static inline void append_dsd64(struct dsd64 **dsd, struct scatterlist *sg) |
| 26 | { |
| 27 | put_unaligned_le64(sg_dma_address(sg), p: &(*dsd)->address); |
| 28 | put_unaligned_le32(sg_dma_len(sg), p: &(*dsd)->length); |
| 29 | (*dsd)++; |
| 30 | } |
| 31 | |
| 32 | #endif |
| 33 |